#include<stdio.h>
#include<stdlib.h>
int main()
{
    int k,a,b,i,count1,count2;
    for(k=4;k<=100;a++)
    {
        for(a=2;a<=k/2;a++)
        {
        count1=0;
        for(i=2;i<=a-1;i++)
        {
            if(a%i==0)
            {
                count1++;
                break;
            }
        }
        if(count1==0)
        {
            b=k-a;
            count2=0;
            for(i=2;i<=b-1;i++)
            {
                if(b%i==0)
                {
                    count2++;
                    break;
                }
            }
            if(count2==0)
            {
                printf("%d=%d+%d\n",k,a,b);
                break;
            }
        }
    }
}
system("pause");
return ;
}
